F1ANNEX IIIREQUIREMENTS FOR SPATIAL DATA THEMES LISTED IN ANNEX II TO DIRECTIVE 2007/2/EC

Annotations:

1.ELEVATION

1.3.Elevation – Base Types

1.3.1.Enumerations

1.3.1.1.Elevation Property Type (ElevationPropertyTypeValue)

Enumeration type which determines the elevation property which has been measured or calculated.

Values for the enumeration ElevationPropertyTypeValue

Value

Definition

height

Elevation property measured along a plumb line in a direction opposite to Earth's gravity field (upwards).

depth

Elevation property measured along a plumb line in a direction coincident to Earth's gravity field (downwards).

1.3.1.2.Surface Type (SurfaceTypeValue)

Enumeration type which determines the elevation surface with regard to its relative adherence to the Earth's bare surface.

Values for the enumeration SurfaceTypeValue

Value

Definition

DTM

Digital terrain model.

DSM

Digital surface model.